The Apple Dumpling Gang Rides Again (1979)

Director: Vincent McEveety
Cast: Don Knotts, Elyssa Davalos, Harry Morgan, Jack Elam, Kenneth Mars, Robert Pine, Tim Conway, Tim Matheson

Synopsis:

Amos and Theodore, the two bumbling outlaw wannabes from The Apple Dumpling Gang, are back and trying to make it on their own. This time, the crazy duo gets involved in an army supply theft case — and, of course, gets in lots of comic trouble along the way!